Georeferenced U.S. Coast & Geodetic Survey (USCGS) topographic maps

Digital topographic maps (T-sheets) for the Columbia River estuary provided by NOAA Coastal Services Center and georeferenced with the aid of our national geodedist at the National Geodectic Survey, David Doyle.

These data are provided without constraints. Please cite the maps as indicated in the metadata.

All data provided in Oregon Lambert NAD83, units of meters. There are 25 survey maps.